preparation for commercial / atp pilots your instructor for this ground school… brand wessels...
TRANSCRIPT
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Preparation for
Commercial / ATP Pilots
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Agenda:
• Personal Introductions – name, background, qualifications
• What is our expectations from this course
• Course Rules – be on time, be prepared and participate constructively
• Be Professional• Course Schedule• Have FUN!
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MathematicsWhat do we need to know?
We need to have basic understanding of:
• Basic Algebra - cross-multiplication, cross-addition and -subtraction, averaging, powers and roots, bracketing, percentages, inverse calculation and vectors.
• Basic Trigonometry – Triangles, Ratio’s, Pythagoras.
• Basic Interpolation.• How to operate the Navigation Computer and
Scientific Calculator.
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The Myth – “this is difficult…”
• If you passed Mathematics up to Grade 10 standard grade, you have covered everything you will need.
• There is NOTHING in the CAA theory syllabus, that is as difficult as passing a current Grade 12 Higher Grade Mathematics' exam – go try one….
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SA Grade 12 formulas in 2008……
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That Being Said….
• You have to know the basics WELL.• You have to know your calculators WELL.• You have to stay CURRENT.• You have to show enough RESPECT for the
basics required.• The CPL/ATPL exam is quite a lot of work –
about the same volume as the first 3 month’s of Engineering studies at University. If you are not on top of the required mathematics, you will waste time.
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The ABC of this course….
•APPLY your
•BACKSIDE to the
•CHAIR….
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Push this button just before you choose a 2nd
function buttonInverse Button
Square Root
Force of 2
Force of 3
10 to the force …
Degree, minutes, seconds – also hours, minutes, seconds
% ButtonBrackets
Trig Example: You are taking off from a runway, with a hill 300’ high, 6000’ from the threshold. What angle of climb must you maintain to clear the hill?
tan c = b/a
And y=300’ and x=6000’
Tan x = 0.05
Divide by tan same as inverse (or cot, or tanˉ¹)
Thus c = 2,86º
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Functions
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A fraction is an ordered pair of whole numbers, the 1st one is usually written on top of the other, such as ½ or ¾ .
The denominator tells us how many pieces the whole is divided into, thus this number cannot be 0.
The numerator tells us how many such pieces are being considered.
numerator
denominatorba
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• Variable – A variable is a letter or symbol that represents a number (unknown quantity).
• 8 + n = 12
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• A variable can use any letter of the alphabet.
• n + 5
• x – 7
• w - 25
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An Equation is like a balance scale. Everything must be
equal on both sides.
10 5 + 5=
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When an amount is unknown on one side of the equation it is
an open equation.
7 n + 2=
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When you find a number for n you change the open equation to a true equation. You solve
the equation.
7 n + 2=
5
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Simple Algebra• Remember Rules:
• The sum of two positive numbers is always positive.
• The sum of two negative numbers is always negative.
• Multiplication/Division of two positive numbers is always positive.
• Multiplication/Division of two negative numbers is always positive.
• Multiplication/Division of a positive and a negative number is always negative.
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Addition and Subtraction
26+(-38)-(-55)+(-61)-(23) =
-41
On the calculator – type it all without the brackets….
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Powers and Roots
2 x 2, same as 2², same as 2 to the power of 2, same as 4.
The root of 4, same as √4, same as 2.
On the calculator:
2x², enter = 4
√4, enter = 2
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Inverse operation the opposite operation used to
undo the first. • 4 + 3 = 7 7 – 4 = 3• 6 x 6 = 36 36 / 6 = 6• Use “xˉ¹” on you calculator.
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Parentheses and Brackets)
Use brackets when you want to do certain calculation before the rest:
b² = 60² - (35000÷6080)²
b² = 3566,8. Now press √ and
b = 59,72
C = 2 x ((9÷3) + (4+3)²)
C = 2 x (3 + 49)
C = 104
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Order of Algebraic Operation:
“PEMDAS”Solve in the following sequence:
• P for solving Parentheses(or brackets)
• E for solving Exponents next
• MD for Multiplication and Division next
• AS for Adding and Subtracting next.
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Example:
• y = ((4³ + √((3+27) – (25÷5))) ÷ 3) + 273
• P is y = ((4³ + √(30 – 5)) ÷ 3) +273 And y = ((4³ + √25) ÷ 3) +273• E is y = ((64 + 5) ÷ 3) +273• MD is y = (69 ÷ 3) + 273• AS is y = 23 + 273 = 296
Prove it by typing the whole equation into your calculator at once….
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Solving Addition and Subtraction Equations
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Procedure
• Isolate the variable by performing the inverse operation on that variable.
• The inverse of subtraction is adding. The inverse of adding is subtracting.
• Perform the same operation on the side of the equal sign that does not have a variable.
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Example
y + 13 = 25
We want to get the y by itself. Perform the inverse operation. The inverse of adding is subtracting.
- 13 Do the same operation on the other side of the equal sign.
- 13
y = 12
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Check the answer in the original equation.
y + 13 = 2512 + 13 = 25
25 = 25
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Example 2
k – 12 = 4To get k by itself, we perform the inverse operation. The opposite of “minus 12” is “plus 12.”
+ 12 + 12
k = 16
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Check
k – 12 = 4
16 – 12 = 4
4 = 4
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Solving Multiplication and Division Equations
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Procedure
• Isolate the variable by performing the inverse operation on the number that is attached to the variable.
• The inverse of multiplication is division. The inverse of division is multiplication.
• Use the “Golden Rule.” Perform the same operation on the other side of the equal sign.
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Example
m ÷ 3 = 10The inverse of division is multiplication. x 3Repeat the operation on the other side.
x 3
m = 30
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Check. Use the original equation.
m ÷ 3 = 1030 ÷ 3 = 10
10 = 10
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Example 2
7b = 105The inverse of multiplying is dividing.
÷ 7 ÷ 7
b =10571
735
5
350
15
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Check
7b = 1057(15) = 105
105 = 105
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Cross MultiplicationMoving the variable around in a function, until the
unknown variable is isolated.
Example: In a² = b² + c², if we have to
solve for c we have to isolate it on one side of the equal sign.
Important: What you do on one side of the equation has to be done on the other side.
Thus: a² = b² + c² - b² leaves c² isolated,
but then we have to subtract b² on the left side of the equation as well:
a² - b² = c²
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SIN B =
And solving for B in the following function:
b x x b Something divided by itself = 1
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• Remember “of” means multiply in mathematics.•“Per” means division in mathematics.
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Solve the Problems3a = 21
To solve a, divide both sides by 3:
a = 7
b + 17 = 59To solve a, subtract 17 from both sides:b = 42
c – 22 = 100To solve c, add 22 to both sides
d = 505To solve for d, multiply both sides by 5d = 250
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Exponents
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Vocabulary
exponent – the number of times a number is multiplied by itself.
base – the number that is being multiplied.
83base
exponent
This is read “8 to the 3rd power” or “8 cubed.”
It means 8 x 8 x 8.
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Evaluating Exponents
25= 2 x 2 x 2 x 2 x 2 = 32
63 = 6 x 6 x 6 = 216
1.34 = 1.3 x 1.3 x 1.3 x 1.3 = 2.8561
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Exponents with a base of 10
• Any multiple of ten can be expressed as an exponent with a base of ten.
• The base is 10. The number of zeroes gives us the exponent.
• Example: 100 = 102
• 10,000 = 104
1,000,000 = 106
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Writing in Expanded Form Using Powers of 10
• First, write the problem in expanded form.
• Then, change each term to a multiplication of the value and its place.
• Change the place values to exponents with powers of 10.
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Example 7, 946
7, 000 + 900 + 40 + 6(7 x 1,000) + (9 x 100) + (4 x 10) + (6 x 1)
7 x 103 + 9 x 102 + 4 x 101 + 6
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Percentages
Simply a fraction of 100 (meaning “cent)
Examples:
•1/3 = 33.33% (1÷3x100)
•¾ = 75% (3÷4x100)
•1½ = 150% (3÷2x100)
•15% of 3267 = 490
•230 expressed as a % of 430 = 230÷430x100 = 53,5% On the calculator –
use “shift, %” to do it faster.
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Percents Have Equivalents in Decimals and Fractions
20% .2020100
15= = =
Decimal FractionFraction
SimplifiedPercent
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Finding a Percent of a Number
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Using a Proportion
• Set up a proportion that uses the percent over 100.
• Cross multiply to write an equation.
• Solve the equation.
To set up your proportion, think, “IS over OF equals PERCENT over 100.”
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Example – What is 20% of 30?
= 20100
part
whole30x
=100x 30(20)=100x 600
100 100=x 6
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Using a Decimal
• Change the percent to a decimal.
• Multiply that decimal by the number you are finding the percent of.
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Example – What is 18% of 70?
18% = 0.18
0.18 x 70 = 12.6
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Vocabulary
• A percent is a ratio that compares a number to 100. It means “per 100.”
• 49 out of 100 is 49%.
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Writing Percents as Decimals
• Imagine a decimal point in the place of the percent sign, and move the decimal two spaces to the left (the same as dividing by 100).
26% .26
40% .40 .47% .07
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Writing Percents as Fractions• Place the percent in a fraction with a
denominator of 100.• Simplify the fraction.
26% 26100
1350
75%75
10034
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Writing Decimals as Percents
• Move the decimal point two spaces to the right, and add a % symbol (this is the same as multiplying by 100).
.34 34%
.19 19%
.125 12.5%.6 60%
1 100%
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Included %When asked to work out the % of reserve fuel when it’s already included in the total given, care must be taken with the mathematics:
Example:
We have 11 500 Lt of fuel which include 15% reserve – how much fuel do we have available without using the reserve fuel?
If we started with 10 000 Lt and then had to add 15% reserve it means:
10 000 x 15% = 1500 + 10 000 = 11 500 Lt total fuel.
To reverse the calculation (how much fuel do we have without the 15%), we have to divide the total with 1.15 (or 115%).
Or 11 500 ÷ 1.15 = 10 000 Lt
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Averages
Simply add all the quantities and divide it by the number of quantities
Example:
7, 11, 14, 8, 3, 26
means
(7 + 11 + 14 + 8 + 3 + 26) ÷ 6 = 11.5
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Hint
• If you don’t see a negative or positive sign in front of a number it is positive.
9+
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Rounding of Decimal Numbers
• When the digit to the right of the last retained digit is 5 or greater, round up by 1
• When the digit to the right of the last retained digit is less than 5, keep the last retained digit unchanged
Example:
23.46 becomes 23.5
And 2.1938 becomes 2.2
Note: Only do rounding at the
final calculation…..
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Ratios• A comparison of two numbers
• Can be expressed as:– a fraction– A colon (:)– The word “to”
Example:
A gear ratio of 5:8 can be express as:
⅝ or 5:8 or 5 to 8
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Ratios in Aviation
• Compression Ratio• Mach Number• Aspect Ratio• Air-Fuel Ratio• Glide Ratio• Gear Ratio• Interpolation• Trigonometry• Map Scales
No Unit of Measure….
i.e.: cm, lt or nm, etc.
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Ratios
• A ratio is a comparison between two numbers by division.
• It can be written in three different ways:
5 to 25 : 2 5
2
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Equal Ratios
• When two ratios name the same number, they are equal. It’s like writing an equivalent fraction.
20 : 30Equal Ratios:
10 : 15 2 : 3 80 : 120
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Example:If the cruising speed of an airline is 200knots and its maximum speed is 250knots, what is the ratio of cruising speed to the maximum speed?• Solution:
• First express the speeds as a fraction:– Or Ratio =
• Then reduce fraction to smallest terms:– Or Ratio = = or 4 to 5, or 4:5
200
250
200
250
4
5
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Angles
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Vocabulary
• An angle has two sides and a vertex.
• The sides of the angles are rays. The rays share a common endpoint (the vertex)
• Angles are measured in units called degrees.
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Types of Angles
When lines intersect to form right angles, then they are classified as perpendicular lines.
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Measuring Angles
• Place the center point of the protractor on the vertex of the angle and turn the protractor so that one side lines up with 0 on the inner scale.
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Measuring Angles (strategy 2)
• Place the center point of the protractor on the vertex of the angle. Note where both rays cross the protractor. Subtract the two numbers (from the same scale)
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Property of triangles
• The sum of all the angles equals 180º degrees.
90º 30º
60º
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What is the missing angle?
70º70º
?+180º70º 70º
?
40º
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Classifying Triangles
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Classifying by Angle
•Acute triangles have three acute angles.
•Obtuse triangles have one obtuse angle.
•Right triangles have one right angle.
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Classifying by Sides
•Equilateral triangles have three congruent sides.
•Isosceles triangles have two congruent sides.
•Scalene triangles have zero congruent sides.
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Finding Missing Angles•The three angles of a triangle always add to 180°.
•Use a variable to stand for the missing angle and set an equation equal to 180.
x + 49 + 47 = 180x + 96 = 180 – 96 = -96
x = 84
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Trigonometry
The Right Angled Triangle
Trigonometric functions are
commonly defined as ratios of two sides
of a right triangle containing the angle
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Study Tip
Acronym's to use:
• Sin-oh
• Cos-ah
• Tan-oa
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Example: There is a hill 250’ high, 3000’ from the threshold of the runway.
What must the angle of climb be to clear the hill by 100’?
350’
3000’
Answer:
Tan ∞ = 350
3000
Tan ∞ = 0.116
∞ = 0.116
tan
AoC = 6.65º
90º∞
Can you see it’s a Right Angled Triangle?
Threshold
Hill
•Sin-oh•Cos-ah•Tan-oa
Which ratio to use?
Opposite
Adjacent
Hypotenuse
Thus we use
Tan…
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The SINE Rule.A
C
B
c
a
b
aa
SIN ASIN A
bb
SIN BSIN B
cc
SIN CSIN C== ==
Non-Right Angle Triangle
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The COSINE Rule.
A
C
B
c
a
b
a² = b² + c² - 2bc x COS A
b² = a² + c² - 2ac x COS B
c² = a² + b² - 2ab x COS C
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COSINE RULE is used in NON-RIGHT ANGLED
TRIANGLES when given the length of two sides and one angle and the unknown is the length of the side
opposite the known angle or when given the length of all three sides
and the unknown is any angle.
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Example:
Solve the length of Side a.a² = b² + c² - 2bc COS Aa² = 3² + 7² - (2 3 7 COS 40)a² = 9 + 49 - 32,17a² = 25,83a = √25,83 a = 5,08 UNITS
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SINE RULE is used in NON-RIGHT ANGLED
TRIANGLES when given the length of two sides and one angle and the unknown is the length of the side
adjacent to the known angle.
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SIN B =
SIN B =
At 1205, aircraft A and B are 75 nm's apart and are on a collision course. Aircraft A 330 Kts. Aircraft B 360 Kts. The relative bearing from A to B is 075. What angle needs to be closed by aircraft B to intercept aircraft A?
SIN B = 0.885
B = 62.3º
Example:
?
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• Sine– The most fundamental sine wave has the
graph shown. – It fluctuates from 0 to a high of 1, down to –1,
and back to 0, in a space of 2.
Graphs of the Trig Functions
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• Cosine– The graph of cosine resembles the graph
of sine but is shifted to the left. – It fluctuates from 1
to 0, down to –1,
back to 0 and up to 1.
Graphs of the Trig Functions
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THE CIRCLE
Various questions may be asked relating to the radius, diameter, surface or circumference of a circle.FORMULA
d (diameter) = 2rc (circumference) = 2rs (surface) = r²
EXAMPLE 1:If the radius of a circle is 7 units, determine its circumference?
c = 2r= 2 3,14 7= 43,98 UNITS
rd
c
s
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To Calculate the Radius of a TurnTAS 240 KtsRATE 1 TURNRATE 1 TURN = 2 mins. (360º)
What is the radius of the turn in feet?
Circ =240 x 6080' x
Circ =48640’
Circ = 2 r
r = Circ/ 2
r =48640/ 2
r =7741'
2
60
Example:
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Convergency = Dlong x sin Mid Lat
Example:
What is the value of Convergency between Point A(26º40’S 24º15’E) and Point B (26º40’S 55º15’E)?
Solution:
The difference in longitude is: 55º15’ - 24º15’ = 31º
And: Convergency = Dlong x sin Mid Lat
Convergency = 31º x sin 26º40’
Convergency = 31º x 0,449
Convergency = 13,91º
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Pythagoras• Used with Right Angle Triangles• Used for DME Slant Range Calculation
90º
A
B
C
a
b
c
a² = b² + c²
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Example:
An aircraft at 35 000' is 60 DME from a ground station. What is the ground range?
90º
A
B
C
a
b
c35000
60
?
Solution:
a² = b² + c² or
b² = a² - c²
b² = 60² - (36000÷6080)²
b² = 3564.9
b = √ 3566,8
b = 59,72 nm (Ground Dist.)
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Triangle of Velocities
DepartDestination
Air Position
Ground Position
THDG/TAS
Air Vector/Air Plot
Alw
ays from
Air to Track
W/V
Ground
Vector
Track Plot
TRK/GS
Drift
Angle
Vectors - Lines with Direction and speed
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Interpolation: 1. to insert between or among others2. to change by putting in new material3. to estimate a missing value by taking an average of known values at neighboring points
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Interpolate one series at a time:
PALT 14 000 16 000
AUW 12 000 LBS 1237 1268
15 500 1268 – 1237 = 31/2000 X 1500 = 23,25 (+1237)
= 12601260
AUW 10 000 LBS 1098 1120 1120 – 1098 = 22/2000 X 1500 = 16,5 (+1098)
= 1114.5
1115
AUW 10 750 LBS1260 – 1115 = 124/2000 X 750 = 54,37 (+1115)
= 1169
1169
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Exercises:
1. Subtract the following numbers:
5920
-2744
-4889
3921
-492
= 10 124
2. Express as a %:
13/44
= 29.54%
26/85
= 30.58%
1/33
= 3.03%
3. If full tanks of fuel = 90 000 kg of fuel, and 15% reserves are carried, what is the fuel without reserves?
90 000 ÷ 1.15
= 78269.86 kg
4. Logging the following hours per week, what is the average trip length (hour and minutes)?
3.73
4.5
1.9
2.5
5.7
3h39min57sec
5. Sin A = .0876. What is value of A?
A = 5.02º
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Primary Radar RangingA radar system has the following specifications : PRF of 400 PPS and a pulse width of 2µ seconds. Find the maximum and minimum range.
Range (M) = Speed X Time
2
Range (M) = 3 x 108
Meters / second X
2
Range (M) =600 Meters
2
Range (M) = 300 Meters Or 0.3 KM
106
2 X Seconds
Minimum Range :
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LSS
TASMachNumber
If the Local Speed of Sound is 1100 feet per second, what is the TAS If the Local Speed of Sound is 1100 feet per second, what is the TAS of an aircraft flying at Mach 0.73?of an aircraft flying at Mach 0.73?
We can not work in feet per second as TAS is in knots. To We can not work in feet per second as TAS is in knots. To convert feet per second proceed as follows : 1100 x 60 = 66000 convert feet per second proceed as follows : 1100 x 60 = 66000 feet / minute: 66000 x 60 = 3960000 feet / hour: 3960000 / 6080 feet / minute: 66000 x 60 = 3960000 feet / hour: 3960000 / 6080 = 651 Kts = 651 Kts
32.651 73.0TAS
Knots .5475 .32651 73.0
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LSS
TASMachNumber
Two aircraft flying at the same Flight Level, Aircraft A has a Mach Two aircraft flying at the same Flight Level, Aircraft A has a Mach Number of 0.815 and a TAS of 500 Knots, Aircraft B has a Mach Number of 0.815 and a TAS of 500 Knots, Aircraft B has a Mach Number of 0.76. At what Flight Level are the aircraft flying and Number of 0.76. At what Flight Level are the aircraft flying and what is the TAS of aircraft B?what is the TAS of aircraft B?
273 945.38 coatLSS
KnotsLSS 5.613
273 945.38 5.613 coat
273 945.38
5.613 coat
273 75.15 coat
273 275.15 coat
273 06.248 coat
coat 273 06.248
9.24 coat
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Problem Solving
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Problem Solving is easy if you follow these steps
Understandthe
problem
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Step 1 – Understand the problem
• Read the problem carefully.• Find the important information.• Write down the numbers.• Identify what the problem wants
you to solve.• Ask if your answer is going to be
a larger or smaller number compared to what you already know.
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Step 2 - Decide how you’re going to solve the problem
Choose a method
Use a graph Use formulasWrite an equationMake a listFind a pattern Work backwardsUse reasoning Draw a pictureMake a table Act it out
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Step 3 - Solve the problem
LSS
TASMachNumber
Example:
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Step 4 - Look Back & CheckReread the problem
Substitute your new number Did your new number work?
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Strategy
• When a problem contains difficult numbers (like fractions or mixed numbers), then imagine the problem with simpler numbers.
• Solve a problem using the simpler numbers.• Check to see if the strategy worked. Does the
answer make sense?• Go back and use the same strategy, only this
time you can use the more difficult numbers.
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If you get stuck…
• Remember, there are only four operations to choose from: multiply, divide, add, or subtract.
• Try a few operations and see which answer makes the most sense.
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Words that mean “Add”
• In all
• Increased by
• How many / how much
• Sum
• Total
• Added to
• Altogether
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Words that mean “Subtract”
• How many / how much MORE
• Decreased by
• Difference
• Less than
• Fewer than
• Left / left over
• Reduced by
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Words that mean “Multiply”
• Of
• Product
• Times
• Multiplied by
• In all / total / altogether (when referring to repeated addition)
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Words that mean “Divide”
• Quotient
• Out of
• Per
• Ratio
• Percent
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E:\Cx-2e220.exeNavigation Computer
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Study Methods
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How to Mind Map1. Use just key words, or wherever possible images. 2. Start from the center of the page and work out. 3. Make the center a clear and strong visual image that depicts the
general theme of the map. 4. Create sub-centers for sub-themes. 5. Put key words on lines. This reinforces structure of notes. 6. Print rather than write in script. It makes them more readable and
memorable. Lower case is more visually distinctive (and better remembered) than upper case.
7. Use color to depict themes, associations and to make things stand out.
8. Anything that stands out on the page will stand out in your mind. 9. Think three-dimensionally. 10. Use arrows, icons or other visual aids to show links between
different elements. 11. Don't get stuck in one area. If you dry up in one area go to
another branch. 12. Put ideas down as they occur, wherever they fit. Don't judge or
hold back. 13. Break boundaries. If you run out of space, don't start a new
sheet; paste more paper onto the map. (Break the 8x11 mentality.)
14. Be creative. Creativity aids memory. 15. Get involved. Have fun.
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Your mind think in
Pictures!!!
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Eggs Pencils
Bacon Spaghetti
Knife Yoghurt
Bananas Syrup
Dough Nuts Red Paint
Memorize the following shopping list in 10
seconds….
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Body List Method
1 = Toes
2 = Knees
3 = Thighs
4 = Back side
5 = Love Handles
6 = Shoulders
7 = Throat
8 = Face
9 = Point
10 = Ceiling
1. Eggs2. Bacon3. Knife4. Bananas5. Dough Nuts6. Pencils7. Spaghetti8. Yoghurt9. Syrup10.Red Paint
Now create your own house list….
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Always use something that
you know already as your list….
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11 Tips to Improve Studying Results 1 Study in Short, Frequent Sessions – no more than one hour at a time, with 10min break.
2 Take Guilt-Free Days of Rest.
3 Honor Your Emotional State. Do not study if you are tired, angry, distracted, or in a hurry.
4 Review the Same Day.
5 Observe the Natural Learning Sequence. if you try first to grasp the big picture and then fill in the details, you often have a more likely chance of success.
6 Use Exaggeration. Why do runners sometimes strap lead weights to their legs?
7 Prepare Your Study Environment. For example, do you need special lighting, silence, music, privacy, available snacks, etc.?
8 Respect “Brain Fade.” As you place more information on top, the lower levels become older and less available to your immediate recall. The trick here is simply to review.
9 Create a Study Routine. An effective way to do this is to literally mark it down in your datebook calendar as if you have an appointment, like going to the doctor. For example: “Tuesday 3-4:30 P.M. — Study.
10 Set Reasonable Goals. Set your vision on the long-term dream, but your day-to-day activity should be focused exclusively on the short-term, enabling steps.
11 Avoid the Frustration Enemy. Don’t waste energy blocking, getting upset, and thinking that you’re not good enough — simply keep moving forward at a slower (but un-blocked) pace.
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The 7 Habits of Highly Effective People
Habit 1: Be Proactive
Habit 2: Begin with the End in Mind
Habit 3: Put First Things First
Habit 4: Think Win-Win
Habit 5: Seek First to Understand, then to be Understood
Habit 6: Synergize
Habit 7: Sharpen the Saw
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Use a Diary – any plan is not a plan untill it’s written down. That includes a study plan..
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The Time Management Quadrant
•Crises
•Pressing Problems
•Deadline driven projects, meetings, preparations
•Interruptions, phone calls
•Some mail, some reports
•Some meetings
•Many popular activities
•Preparation
•Prevention
•Values clarification
•Planning
•Relationship building
•Empowerment
•Trivia, busywork
•Some telephone calls
•Time wasters
•“Escape” activities
•Excessive TV
NOT URGENTURGENT
IMP
OR
TA
NT
NO
T IM
PO
RT
AN
T
1
43
2
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Make it FUN!!